Node.js · Junior · Question 39 of 75

What happens if a promise rejects and nothing handles the rejection?

1The error is silently ignored
✓Correct answer: Node.js emits unhandledRejection and by default crashes the process
3Node.js retries the operation automatically

Explanation

Since Node.js 15, unhandled rejections throw by default. Always await promises inside try/catch or add .catch().

Further reading

Test yourself

Take the Node.js · Junior quiz: questions and options are shuffled, and you get a review of your mistakes at the end.